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                直线和点                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：512MB</p>			</div>
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                                <h3>题目描述</h3><p><div>平面的n条直线将平面分割成了若干区域，给出m 个点，求每个点所区域的面积。为了防止出现面积无穷大的情况</div>
<div>，有额外的四条直线框定了平面区域的大小，分别是x=L, y=L, x=-L, y=-L。其中L是给定的正实数，所有的点都</div>
<div>在这个框定的区域内。另外为了防止精度问题，任意一个点到任意一条直线的距离&gt;10^-7。</div>
<p></p></p><hr/><h3>输入格式</h3><p><div>第一行两个正整数和一个正实数，n, m, L，意义如上所述。&nbsp;</div>
<div>第2~n+1行每行三个实数 A, B, C表示直线的方程为Ax+By+C=0。&nbsp;</div>
<div>第n+2~n+m+1行每行两个实数 x, y 表示点的坐标。</div>
<div>对于100%的数据,输入数据的绝对值&lt;=10^7且最多保留2位小数，n&lt;=500,m&lt;=100000。&nbsp;</div>
<div></div>
<div></div>
<div></div></p><hr/><h3>输出格式</h3><p><div>按输入的顺序输出每个点所在的区域面积，每个一行，保留 2位小数。</div></p><hr/><h3>样例输入</h3><pre>2 4 3 
1 1 -1 
-1 1 -1 
0 2 
-2 1 
2 1 
0 0</pre><hr/><h3>样例输出</h3><pre>4.00 
8.50 
8.50 
15.00</pre><hr/><h3>提示</h3><p>没有写明提示</p><hr/><h3>题目来源</h3><p>没有写明来源</p>
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